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Cooling system defined in a cylinder block of an internal combustion engine

a technology of internal combustion engine and cooling system, which is applied in the direction of machines/engines, cylinders, mechanical equipment, etc., can solve the problems of difficult cooling regions, insufficient strength of the cooling jacket provided in the bridge area, etc., to maintain structural integrity, minimize stress risers in the block, and preserve the integrity of the bridge

Active Publication Date: 2013-10-15
FORD GLOBAL TECH LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This solution enhances cooling efficiency, preserves the bridge's structural integrity by minimizing stress risers, and eliminates the need for machining a cooling passage through the bore, thereby maintaining dimensional accuracy and strength.

Problems solved by technology

Typically, there is no cooling jacket provided in the bridge area to retain sufficient strength.
However, the distance between the combustion chamber and the nearest water jacket is great making it a difficult region to cool.

Method used

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  • Cooling system defined in a cylinder block of an internal combustion engine
  • Cooling system defined in a cylinder block of an internal combustion engine
  • Cooling system defined in a cylinder block of an internal combustion engine

Examples

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Embodiment Construction

[0014]As those of ordinary skill in the art will understand, various features of the embodiments illustrated and described with reference to any one of the Figures may be combined with features illustrated in one or more other Figures to produce alternative embodiments that are not explicitly illustrated or described. The combinations of features illustrated provide representative embodiments for typical applications. However, various combinations and modifications of the features consistent with the teachings of the present disclosure may be desired for particular applications or implementations.

[0015]FIG. 1 shows a schematic of a block 45 of a multi-cylinder, internal-combustion engine with cylinders aligned along a longitudinal axis 70. Between cylinders are bridges 8 having slots 9.

[0016]FIG. 2 shows an internal combustion engine 1 with a cooling circuit 2. Cooling circuit 2 is divided into a cylinder block water jacket portion 3, and a cylinder head water jacket portion, thereb...

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PUM

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Abstract

An internal combustion engine is disclosed that has a cylinder block with multiple cylinders, a bridge between adjacent cylinders, a cooling slot in the bridge, and a water jacket portion in the cylinder block. A cylinder head is coupled to the cylinder block which has a first cooling passage fluidly coupling the cooling slot and the water jacket portion in the cylinder block, a water jacket portion in the cylinder head, and a second cooling passage in the cylinder head fluidly coupling the cooling slot with the water jacket portion in the cylinder head. A cylinder head gasket is arranged between the cylinder head and the cylinder block which has a first orifice in the cylinder head gasket cooperating with the first cooling passage a second orifice in the cylinder head gasket cooperating with the second cooling passage.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims foreign priority benefits under 35 U.S.C. §119(a)-(d) to EP 09166865.7 filed Jul. 30, 2009, which is hereby incorporated by reference in its entirety.BACKGROUND[0002]1. Technical Field[0003]The disclosure relates to cooling an internal combustion engine.[0004]2. Background Art[0005]A cylinder block for an internal combustion engine is cast from a metal and includes a cooling jacket through which coolant is circulated to maintain acceptable temperatures. An acceptable temperature is one that is lower than the melting temperature of the material. It is desirable to maintain a temperature lower than that so that the structural integrity of the block is maintained. Furthermore, it is desirable to maintain a uniform temperature within the block to avoid differential expansion. Differential expansion can cause a block at ambient temperature that is dimensionally accurate to fall outside of acceptable tolerances. One meas...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): F02F1/14
CPCF01P3/02F02F1/14F02F1/40F01P7/165F01P2003/027F01P2003/028
Inventor LENZ, INGOMORAWITZ, URBANFRITSCHE, RICHARDBARTSCH, GUENTERSTEINER, BERNDSLOTMAN, JEROEN
Owner FORD GLOBAL TECH LLC
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